How do the observations of Brownian motion help to reinforce or weaken the hypothesis that matter is made up of tiny particles?

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Compare and contrast the bohr model and the electron cloud models of the atom.

What are the first three quantum numbers for the electrons located in subshell 2s?